What does code P2664 mean?

Q: What does code P2664 mean?

'B' Rocker Arm Actuator Control Circuit High (Bank 2). P2664 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the control circuit for the bank 2 'B' rocker arm actuator, which is part of a variable valve timing or cylinder deactivation system. The PCM commands the actuator to change valve lift or disable cylinders, but the circuit voltage stays above the expected range, so the PCM sets this code and may disable the system.

DTC codes / P26xx · Computer and output circuits / P2664

P2664'B' Rocker Arm Actuator Control Circuit High (Bank 2)

P2664 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the control circuit for the bank 2 'B' rocker arm actuator, which is part of a variable valve timing or cylinder deactivation system. The PCM commands the actuator to change valve lift or disable cylinders, but the circuit voltage stays above the expected range, so the PCM sets this code and may disable the system.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaComputer and output circuits

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.